胡同學(xué)
2022-10-31 18:16B和C 選項(xiàng)看不懂哈,可否解釋一下。
所屬:CFA Level I > Quantitative Methods 視頻位置 相關(guān)試題
來源: 視頻位置 相關(guān)試題
1個(gè)回答
Evian, CFA助教
2022-10-31 22:04
該回答已被題主采納
ヾ(?°?°?)??你好同學(xué),
The information on a population that we try to obtain usually concerns the value of a parameter, a quantity computed from or used to describe a sample of data.
我們?cè)噲D獲得關(guān)于總體的信息,這個(gè)信息通常與參數(shù)的值有關(guān),這個(gè)參數(shù)值是從數(shù)據(jù)樣本中計(jì)算出來,或用來描述樣本數(shù)據(jù)。
B不對(duì),B應(yīng)該在后半段改為“used to describe a population of data not a sample of data.”
理一下:我們通常用樣本數(shù)據(jù)來估計(jì)總體,樣本數(shù)據(jù)是從數(shù)據(jù)樣本中計(jì)算出來,或用來描述樣本數(shù)據(jù)。
The sampling distribution of a statistic is the distribution of all possible values that the statistic can assume when computed from samples drawn from different populations.
一個(gè)統(tǒng)計(jì)量的抽樣分布是由所有數(shù)值構(gòu)成的分布,“所有數(shù)值”是從不同總體中抽取的樣本。
C不對(duì),C應(yīng)該在后半段改為“drawn from the same population, not from different populations”
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